In recent years we needed to new bearing materials, such as nanotechnologies, new developments are under progress and will certainly engage to engine friction reduction. However, for a minimum friction bearing is solution, it is significant to design or to establish new solutions with estimate to running engine terms and reliability objective. In this work investigate the wear resistance friction coefficient and friction coefficient of epoxy composites reinforced by carbon nano-particles filled by different oil concentration. Sliding of composite material against steel surface was investigated in order to improve materials with high wear resistance and low friction coefficient which can be used as bearing materials. Experiments were carried out at non lubricant sliding condition. The test specimens in the form of cylindrical shape with 7 mm diameter and 30 mm length of epoxy resin filled by carbon nano-particles were tested. Pin on disc tribometer was used to implement the friction and wear tests. Based on the experimental observations, it was found that the addition of carbon nano-particles to epoxy enhanced the wear resistance and reduces the friction coefficient. The minimum value of friction coefficient (0.18) was observed at 7 % carbon nano-particles and 0.4 % oil content. Wear resistance can be increase for epoxy composite by increasing carbon nano-particles up to 10% and 0.3% oil. Increase of oil content decreased the bonding of epoxy and steel surface and reduce friction coefficient and wear losses.
A. M. Samy (Sun,) studied this question.